This paper describes the principle and performances of logic control and fan-out circuits for BES drift chamber read-out electronics. Two operating ways of system calibration and data acquisition have been presented.

• 本文阐述了北京谱仪(BES)漂移室读出电子学逻辑控制和扇出电路的原理及技术性能,介绍了逻辑控制电路的系统校准和数据获取的两种工作方式。